One of the first steps you take when you are determining your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

One way of figuring out when it's a good idea to plant pearl onions is to use the USDA zone info for West Fargo.

Planting Calendar for Pearl onions

Frost tolerance for pearl onions:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

You can plant pearl onions slightly earlier in the year because they are barely cold tolerant.

The earliest that you can plant pearl onions in West Fargo is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant pearl onions and expect a good harvest is probably August. You probably don't want to wait any later than that or else your pearl onions may not have a chance to grow to maturity. Starting your pearl onions indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on May 15 in West Fargo. In the coldest months of winter you can expect an average low temperature of -30°F.

It's important to remember that USDA zone info for West Fargo may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Since half of the time in West Fargo there is a last frost after May 15 be ready to cover your pearl onions if you have a late frost.

USDA Zone Info for West Fargo

Here is the info for USDA Zone 4a.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-30°F
Highest Expected Low	-25°F

This means that on a really cold year, the coldest it will get is -30°F. On most years you should be prepared to experience lows near -25°F.

Plants to Grow in West Fargo

You may be interested in your other planting guides for West Fargo.